Match List - I with List - II.
| List – I | List – II |
|---|---|
| (A) Linkage | (I) Trisomy of 21st chromosome |
| (B) Pleiotropy | (II) Multiple alleles |
| (C) Down's syndrome | (III) T.H. Morgan |
| (D) Blood group | (IV) Phenylketonuria |
Choose the correct answer from the options given below:
Answer & explanation
Correct answer: option 2
The correct answer is Option (2) → (A)-(III), (B)-(IV), (C)-(I), (D)-(II)
(A) Linkage — this matches (III) T.H. Morgan. He coined the term linkage.
(B) Pleiotropy — this matches (IV) Phenylketonuria.
(C) Down’s syndrome — this matches (I) Trisomy of 21st chromosome.
(D) Blood group — this matches (II) Multiple alleles. IA, IB and i.